The fine, made public Friday, stems from the Jackson campaign's failure to file a 2012 end-of-year report on its finances. The report was due last Jan. 31.

Jackson, 48, a Democrat from Chicago's South Side, resigned from Congress in November 2012 just weeks after winning re-election. He is now serving a 30-month sentence in a federal prison camp in Butner, N.C.

The Jackson campaign's last report to the FEC was last December, when it reported $105,703 in cash on hand.

Jackson, the son of civil rights leader Rev. Jesse Jackson, pleaded guilty to looting his campaign of about $750,000 over several years ending in 2012. He spent the money on luxury goods, collectibles, vacations and two mounted elk heads, among other purchases.

Jackson's projected release date is Dec. 31, 2015. His wife, Sandi Jackson, 50, a former Chicago alderman, is to surrender to federal authorities to begin a 12-month prison sentence 30 days after he is released from Bureau of Prisons custody.

She was a co-conspirator in his case and pleaded guilty to failing to report to the Internal Revenue Service about $600,000 in income the couple had from 2005 to 2011.

Pasley, who told the FEC in September that she no longer was Jackson's campaign treasurer, did not return requests for comment today from the Tribune.

An FEC spokesman declined to comment on the Jackson Jr. case but said typically unpaid fines are referred to the Treasury Department for debt collection.

The FEC wrote Pasley last July 1 saying it had made a final determination that the campaign committee and she, as its treasurer, had violated federal law and were being assessed the $7,150 penalty.